$105 Cheap American Airlines flights Washington (IAD) to San Diego (SAN)

You can find affordable return American Airlines flights from $257 from IAD to SAN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $105 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for round-trip or one-way flights to San Diego in January or November. You could find an affordable fare with American Airlines during these off-peak months.

Start searching one to three months before your departure to find cheap fares on American Airlines flights from Washington Dulles Intl. Airport (IAD) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct route from IAD to SAN with American Airlines or another airline, check the “Nonstop” box when browsing for flights.

Search American Airlines’s earliest flights from IAD to SAN by checking our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from Washington Dulles Intl. Airport (IAD) to San Diego come in to San Diego Intl. Airport (SAN). This is the main gateway to this city.

Changes are usually free within 24 hours of making a booking, but your airline may charge a fee after that time. For more details about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional charges, apply the “No cancel fee” or “Changes included” filter when planning your next getaway.